FAA Ground School Practice Test

What is the minimum altitude required to fly over the Cedar Hill TV towers south of Dallas Executive Airport (RBD)?

1. 2,549 ft MSL

2. 3,549 ft MSL

3. 4,549 ft MSL

4. 5,549 ft MSL

The correct answer is: 3,549 ft MSL

The minimum altitude required to safely fly over the Cedar Hill TV towers, which are known for their significant height, must be determined by taking into account their height above mean sea level (MSL). In this case, the correct minimum altitude of 3,549 feet MSL ensures that an aircraft maintains a safe vertical distance above the tallest structure, which is a crucial aspect of aviation safety. This altitude is typically calculated by adding a buffer to the height of the towers. Regulations require that pilots maintain a safe distance above obstacles in order to mitigate the risk of collisions. This buffer is generally determined by the structure's height plus an additional safety margin, often in the range of 1,000 feet or more, depending on the specific regulations and the height of the structures involved. Safety is paramount when navigating around tall structures such as TV towers, especially in areas where traffic patterns and airspace restrictions may further complicate flight operations. Thus, the altitude of 3,549 feet MSL provides an adequate margin above the obstacles while complying with federal aviation regulations.